2021645125

素因数分解:

$5^3\times {\mathrm{19}}^2\times {\mathrm{71}}^1\times {\mathrm{631}}^1$

素因数の和:755

約数の個数: 48

約数和(自身を含む): 2704575744

約数和(自身を除く): 682930619

約数列:

[1, 5, 19, 25, 71, 95, 125, 355, 361, 475, 631, 1349, 1775, 1805, 2375, 3155, 6745, 8875, 9025, 11989, 15775, 25631, 33725, 44801, 45125, 59945, 78875, 128155, 168625, 224005, 227791, 299725, 640775, 851219, 1120025, 1138955, 1498625, 3203875, 4256095, 5600125, 5694775, 16173161, 21280475, 28473875, 80865805, 106402375, 404329025, 2021645125]

約数ペア:

[(1, 2021645125), (5, 404329025), (19, 106402375), (25, 80865805), (71, 28473875), (95, 21280475), (125, 16173161), (355, 5694775), (361, 5600125), (475, 4256095), (631, 3203875), (1349, 1498625), (1775, 1138955), (1805, 1120025), (2375, 851219), (3155, 640775), (6745, 299725), (8875, 227791), (9025, 224005), (11989, 168625), (15775, 128155), (25631, 78875), (33725, 59945), (44801, 45125)]